EP3898474A1 - Verfahren, vorrichtung und system zum aufwickeln einer folienbahn - Google Patents
Verfahren, vorrichtung und system zum aufwickeln einer folienbahnInfo
- Publication number
- EP3898474A1 EP3898474A1 EP19832613.4A EP19832613A EP3898474A1 EP 3898474 A1 EP3898474 A1 EP 3898474A1 EP 19832613 A EP19832613 A EP 19832613A EP 3898474 A1 EP3898474 A1 EP 3898474A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- winding roll
- measurements
- film web
- measured values
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004804 winding Methods 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000005259 measurement Methods 0.000 claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 230000007547 defect Effects 0.000 claims description 14
- 238000011156 evaluation Methods 0.000 claims description 14
- 238000000691 measurement method Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009924 canning Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/54—Auxiliary process performed during handling process for managing processing of handled material
- B65H2301/542—Quality control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/175—Plastic
- B65H2701/1752—Polymer film
Definitions
- the invention relates to a method for winding a film web according to the preamble of claim 1 and a corresponding device according to the preamble of claim 6 and a system according to claim 8.
- plastic film webs After the production of plastic film webs, these are generally wound up on at least one winding roll in order to transport them in the most compact possible format and to make them available again for further processing in a simple manner.
- quality features of the winding roll are determined. More generally speaking, properties of the winding roll can be determined. These characteristics can also include quality features.
- the object of the present invention is therefore to propose a method, a device and a system for determining quality features or properties of the winding roll.
- it is the task to record, evaluate and / or improve the quality of the winding roll.
- measurements are first made on the winding roll. These can be measurements that are carried out only once, for example on the finished roll, several times, continuously and / or periodically.
- the measurements can first be carried out on an empty winding tube, which will later carry the film web, in order, for example, to determine the concentricity of the winding tube or the arrangement of the tubes on the winding shaft (detection of a tube offset) as a quality feature.
- the measurements can be carried out on a winding roll that is being created, that is, on the winding roll during winding. Measurements can also be taken after the winding is completed.
- the production of a winding roll generally refers to the production of sheet-like materials.
- Web-like materials are primarily elastic webs, in special cases also plastic film webs. These webs can be wound up, for example, in extrusion processes, in particular in cast and blown film extrusion, but also in coating, printing, laminating and metallizing processes.
- the present invention can also be used in rewinding and slitter processes.
- winding defects can occur on the outer surface, but also on the face of the ideal cylinder.
- Quality features can also mean optical properties of the winding roll, for example the gloss, the cloudiness, the shadow formation of a winding roll can mean important quality features or properties.
- Measuring methods include, for example, touching measuring methods and non-contact measuring methods. Touching measurement methods are, for example, weight measurement or force measurements on a machine component touching the winding roll. Geometric measurements are also conceivable for carrying out measurements, which can be carried out using simple measuring devices such as measuring tapes. Alternatively, or additionally, optical, acoustic and / or electrical measuring methods are conceivable as measuring methods. Even measurement methods that use particle beams are conceivable. All of these measurement methods provide measurement values for the measurements carried out, which are provided. Both laser triangulation and optical detection using camera systems are particularly suitable as measurement methods. The measuring methods can measure punctually, linearly or flatly on the jacket and / or end face.
- Measurement with a linear triangulation sensor is particularly suitable for detection.
- Other optical measurement methods can use white light or infrared radiation, for example.
- a sensor can detect a shadow, for example.
- provision can be made to use at least two measurement methods that differ in principle in order to use the combination of the respective measured values to add further ones To be able to infer parameters, in particular parameters that are not directly measured.
- the flow of information and data is described in the description of the figures using the diagram shown in FIG.
- the data recorded by the winding roll by the sensor are transmitted to a diagnostic unit.
- the diagnostic unit in turn compresses the sensor data together with process data and can also directly influence the process in a targeted manner and / or prepare data for the operator and / or transfer data to an evaluation unit.
- the diagnostic unit can influence the process in a targeted manner in order to determine possible causes for properties or quality features of the winding roll or the elastic web, in particular if the desired quality features or properties are not achieved.
- data from the diagnostic unit can be transferred to a reconfiguration unit. This unit adjusts process settings so that the desired properties or quality characteristics of the winding roll or the elastic web are achieved.
- Diagnostic unit and / or reconfiguration unit and / or evaluation unit can be implemented by an electronic unit, but corresponding parts of a program can be programmed separately and therefore represent the said units.
- At least one piece of characteristic information can then be filtered out of the measured values provided by the sensor in the diagnostic unit.
- Quality features or properties are thus derived according to the invention from the characteristic information.
- the quality features can also refer to the film web as such, because certain measuring methods measure properties of the film, so that their measurement results relate to the film web. Nevertheless, the properties of the film web also have an influence on the winding roll.
- the Relate quality features to the way in which the film web is or was wound up. It should be emphasized that the film web that is wound up was produced on a film production system and is wound up without intermediate storage, ie inline. Such a film production plant is in particular a flat film plant or a blown film plant.
- one or more characteristic information are assigned to a winding defect.
- the characteristic information can originate from measured values of one or more measurements which are obtained with one or more measuring devices. In particular, several measurements can be combined to obtain characteristic information. In this way, characteristic information can preferably be assigned to a winding defect.
- a winding defect can be caused by the formation of the winding roll, by the process steps preceding the winding, for example the setting or holding of parameters when guiding the film web, and / or by the properties of the film web itself.
- a winding defect in particular its type, its frequency and / or its intensity, is a quality feature in the sense of the present invention.
- the process information for example target values, measurement values, setting values, can likewise be present in the diagnostic unit and, in particular, evaluated and / or processed together with the sensor data.
- Operator instructions can also be used to compress the information obtained.
- information can be given to the operator by the evaluation unit, so that the operator is able to change the process in such a way that the desired defect or the characteristic property of the winding roll is changed.
- these quality indicators can indicate whether and to what extent a parameter of the winding roll deviates from an ideal value and / or a target value.
- An ideal value can be a theoretically predetermined value.
- a setpoint can be any predeterminable value or an average value from previous measurements.
- these key figures and target values are generated, checked and displayed to the operator via the evaluation unit.
- a winding defect with one or more machine components, product parameters and / or process parameters are assigned.
- the quality characteristics can thus be influenced with the aim of producing a qualitatively improved winding roll.
- targeted changes to the product or process parameters can be carried out and / or machine components can be changed, for example, if it is defective.
- the reconfiguration unit is provided in particular.
- the diagnostic unit can detect when edge trimming blades that trim the edges of the film web are worn out. The worn blades create a larger diameter on the edges of the winding roll than on the rest of the outer surface.
- the present invention serves to determine the geometric change on the winding roll already during the winding process and to provide the operator with instructions on how to replace the worn blades.
- longitudinal grooves can be recognized and identified on the outer surface of the outer roller. These grooves, often referred to as tin canning, can also be detected and avoided or even eliminated entirely by changes in the process parameters by the reconfiguration unit.
- properties of the elastic web can also be determined, for example by drawing conclusions about an uneven thickness distribution of the elastic web through detected increases on the winding roll - so-called thick spots.
- the reconfiguration unit can then be used to homogenize the thickness distribution by adapting the process parameters.
- the above-mentioned object can also be achieved by a device for winding up a film web, which in particular on a
- Film production system can be produced, on at least one winding roll, with a diagnostic unit, which is provided and set up for this purpose,
- a measuring device is provided with which measurements can be carried out on the winding roll and with which measured values for the measurements of the diagnostic unit can be provided
- the diagnostic unit is provided and set up to filter out at least one piece of characteristic information from the measured values, and that in particular the diagnosis unit is provided and set up to filter out quality features from the characteristic piece of information.
- a system for producing and winding a film web comprising a film production system with which the film web can be produced, a winding device with which the film web is placed on at least one winding roll, with a diagnostic unit which is provided and set up for this purpose To determine the quality characteristics of the winding roll,
- a measuring device which is provided with which measurements can be carried out on the winding roll and with which measured values for the measurements of the diagnostic unit can be provided
- the diagnostic unit is provided and set up to filter out at least one characteristic information from the measured values, and that in particular the diagnosis unit is provided and set up to filter out quality features from the characteristic information.
- FIG. 1 shows an information and data flow according to the device and the method according to the invention.
- the data recorded on the winding roll 100 by the sensor 110 (represented by the arrow 105) are transmitted to a diagnostic unit 120 (arrow 115).
- the diagnostic unit 120 in turn compresses the sensor data together with process data, represented by the arrow 125, and can directly influence the winding process 130 directly (arrow 135) and / or prepare data for the operator and / or transfer data to an evaluation unit 140.
- the diagnostic unit 120 can influence the process 130 in a targeted manner in order to determine possible causes for properties and / or quality features of the winding roll 100 or the elastic web, especially if the desired quality characteristics or properties are not achieved.
- data from the diagnostic unit 120 can be transferred to a reconfiguration unit 150 (arrow 145).
- This unit 150 adjusts settings of the winding process 130 (arrow 155) such that the desired properties or quality features of the winding roll and / or the elastic web are achieved.
- the reconfiguration unit additionally obtains current data of the winding process, which is represented by arrow 165.
- Diagnostic unit 120 and / or reconfiguration unit 150 and / or evaluation unit 140 can be implemented by an electronic unit, but corresponding parts of a program can be programmed separately and therefore represent said units.
- FIG. 2 shows a winding roll 100, which shows a defect that can often be observed.
- a winding tube 200 is shown, on which several layers of a web have already been wound.
- the web has irregularities at its edges, which leads to the fact that the diameter of the winding in the region of the end faces has thickenings 205, as regions in which the diameter is larger than the diameter in the central region of the winding.
- Any defect can indicate irregularities in the winding device, but also irregularities in the production of the web itself.
- FIG. 3 shows a further winding roll 100 with a further defect that can be observed in reality.
- the film web in the middle area has been changed by undesired influences, in particular what has been damaged is reflected in the circumferential longitudinal grooves 210, the so-called tin canning.
- FIG. 4 shows the essential parameters of a winding roll 100.
- the double arrow 300 shows the width, the double arrow 310 the diameter of the winding roll.
- the diameter is constant over the entire width of the winding roll or at least constant within a predetermined tolerance range.
- the width is also constant over the entire diameter of the winding roll 200 or at least constant within a predetermined tolerance range.
- the latter is expressed, inter alia, in that the end face 320 and also the end face opposite the end face 320 are flat over the entire diameter of the winding roll 200 or at least within a predetermined tolerance range.
- the lateral surface 330 shows no defects.
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Winding Of Webs (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018222374 | 2018-12-19 | ||
| PCT/EP2019/085541 WO2020127192A1 (de) | 2018-12-19 | 2019-12-17 | Verfahren, vorrichtung und system zum aufwickeln einer folienbahn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3898474A1 true EP3898474A1 (de) | 2021-10-27 |
Family
ID=69143518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19832613.4A Withdrawn EP3898474A1 (de) | 2018-12-19 | 2019-12-17 | Verfahren, vorrichtung und system zum aufwickeln einer folienbahn |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20220024710A1 (de) |
| EP (1) | EP3898474A1 (de) |
| WO (1) | WO2020127192A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117272014A (zh) * | 2023-09-20 | 2023-12-22 | 浙江恒逸石化有限公司 | 参数处理方法、装置、设备以及存储介质 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI108635B (fi) * | 1997-06-30 | 2002-02-28 | Metso Paper Inc | Menetelmä rullanmuodostuksen laadun määrittämiseksi ja rullanmuodostuksen ohjaamiseksi |
| FI117171B (fi) * | 2004-04-07 | 2006-07-14 | Metso Paper Inc | Menetelmä ja laitteisto rullauksen hallitsemiseksi |
| DE102014119204B4 (de) * | 2014-12-19 | 2020-03-26 | Windmöller & Hölscher Kg | Verfahren für die Anpassung zumindest eines Wickelparameters einer Wickelvorrichtung |
| DE102017108496B4 (de) * | 2017-04-21 | 2023-06-29 | Windmöller & Hölscher Kg | Verfahren und Vorrichtungen sowie System zum Auf- und Abwickeln eines Wickels |
-
2019
- 2019-12-17 US US17/298,282 patent/US20220024710A1/en not_active Abandoned
- 2019-12-17 WO PCT/EP2019/085541 patent/WO2020127192A1/de not_active Ceased
- 2019-12-17 EP EP19832613.4A patent/EP3898474A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US20220024710A1 (en) | 2022-01-27 |
| WO2020127192A1 (de) | 2020-06-25 |
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